I 90 over Black Foot River

Good Condition7 years old6,216 vehicles/day

Location

StateMontana
CountyMissoula
Location0.6 M West Bonner
CarriesI 90
CrossesBlack Foot River
Coordinates46.87189, -113.88678

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length468.2 ft (142.7 m)
Max Span210.0 ft (64 m)
Deck Width40.4 ft (12.3 m)
Deck Area1755.2 sq m
Main Spans3
Year Built2019

Traffic

Avg Daily Traffic6,216 (2023)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000202001435

Nearby Bridges

I 90 over Blackfoot River 0.0 mi Good I 90 over Rr 0.2 mi Fair S 200 over Blackfoot River 0.2 mi Fair I 90 over Rr 0.2 mi Fair S 200 over Int Bonner I 90 0.5 mi Fair I 90 over Abandoned Railroad 0.7 mi Fair I 90 WB over Abandoned Railroad 0.7 mi Fair S 210 over Mrl Spur (not In Use) 0.8 mi Fair I 90 over Sep Juniper Dr-clark Fk 1.2 mi Fair I 90 over Sep Juniper Dr-clark Fk 1.2 mi Fair